Home / 142,055.04-196,037.10-77,524.79

Finding the Fourth Proportional to 142,055.04, 196,037.10 and 77,524.79

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Solution

The fourth proportional to 142,055.04, 196,037.10 and 77,524.79 is: 106,984.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,055.04 : 196,037.10 = 77,524.79 : x
  2. Step 2: Convert to fraction form
    142,055.04/196,037.10 = 77,524.79/x
  3. Step 3: Cross multiply
    142,055.04x = 196,037.10 × 77,524.79
  4. Step 4: Simplify right side
    142,055.04x = 15,197,734,029.52
  5. Step 5: Solve for x
    x = 15,197,734,029.52/142,055.04
  6. Step 6: Final answer
    x = 106,984.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.